The pumping capacity of heart in 70 years old person as compared to 30 years old person is

There are three persons aged 50, 60, and 70 years. The probability to live 10 years more is 0.8 for a 50 years old, 0.5 for as 60 years old and 0.2 for a 70 years old person. Find the probability that at least two of the three persons will remain alive 10 years hence.

Kartik is n years old. His father is 7n years old.

There are three persons aged 50,60 and 70 years.The probability to live 10 years more is 0.8 for a 50 years old 0.5 for a 60 years old and 0.2 for a 70 years old person.Find the probability that at least two of the three persons will remain alive 10 years hence.

(c)Write the negation of the statement:every living person is not 150 years old.

In a cricket team of 11,7 were at least 20 years old and 8 were almost 30 year old. The ages of how many were from 20 years to 30 years (both inclusive) ?

For a person of age 50 years,the probability of his living upto 70 years is (5)/(12) .For a person of age 60 years the probability of his living upto 70 years (2)/(7). The probability that atleast one of them to live upto 70 years is :

Deepa' s ten years old niece is taller than her twelve years old son.